reactos/lib/msvcrt/stdlib/rand.c

   1 /* Copyright (C) 1994 DJ Delorie, see COPYING.DJ for details */
   2 #include <msvcrt/stdlib.h>
   3 #include <msvcrt/internal/tls.h>
   4
   5 int
   6 rand(void)
   7 {
   8   PTHREADDATA ThreadData = GetThreadData();
   9
  10 #ifdef HAVE_LONGLONG
  11   ThreadData->tnext = ThreadData->tnext * 0x5deece66dLL + 11;
  12 #else
  13   ThreadData->tnext = ThreadData->tnext * 0x5deece66dL + 11;
  14 #endif
  15   return (int)((ThreadData->tnext >> 16) & RAND_MAX);
  16 }
  17
  18 void
  19 srand(unsigned int seed)
  20 {
  21   PTHREADDATA ThreadData = GetThreadData();
  22
  23   ThreadData->tnext = (ULONGLONG)seed;
  24 }